@font-face {
    font-family: "Regular";
    src: url("SourceHanSansCN-Regular.ttf") format("truetype") /* chrome、firefox、opera、Safari, Android, iOS 4.2+ */
}
@font-face {
    font-family: "Bold";
    src:url("bold/SourceHanSansCN-Bold.ttf") format("truetype");
    font-weight: normal;
    font-style: normal;
}
@font-face {
    font-family: "Light";
    src:url("SourceHanSansCN-Light.ttf") format("truetype");
}
@font-face {
    font-family: "Medium";
    src: url('SourceHanSansCN-Medium.otf')
}

*{
    font-family: Regular;
}